INSPECTOR'S TIP - Lock Sets

Two general kinds of locksets are available for doors: cylindrical and mortise. A cylindrical lockset fits into a large hole bored into the door's face; a mortise lockset fits into a rectangular pocket cut into the door's edge.

Problems with locksets usually affect either the latch assembly or the lock mechanism. A latch problem may be the result of a door that fits poorly. A lock mechanism problem may be caused by a dirty or un-lubricated lock. More complicated lock problems may call for a locksmith or replacing a lock. If a lockset needs to be replaced, be sure to buy one of the same type and size.